Sounds like you are doing all the right things...but time to focus on you and the kids and detach from her...look at it like it is a wound or injury do you want to keep cutting it open to look at it...same with her stay away and work at making yourself a better person...I know easier said than done..but in the end we all see that is the only way out...good on making her move out...does she really think she can make it with this college guy? He sounds like a scumbag- isn't there a case where he could be prosecuted for what he did? Maybe that is why she is standing one foot in the door one foot out..